Questcor (NASDAQ:QCOR) and ASML Holding (NASDAQ:ASML) Among Most Active Stocks in Nasdaq Pre-Market

Facebook was down this morning.

MINYANVILLE ORIGINAL The three most active funds and stocks in pre-market trading on the Nasdaq (INDEXNASDAQ:.IXIC) wereQuestcor Pharmaceuticals (NASDAQ:QCOR), ASML Holding (NASDAQ:ASML), and Facebook(NASDAQ:FB)as of 9:00 a.m. Investors traded 973,231 shares of Questcor Pharmaceuticals, which was up $0.19, or 0.72%. Quesctor Pharmaceuticals's stock dropped 50% yesterday when a research website announced that the major health insurer Aetna (NYSE:AET) will drop reimbursement for H.P. Acthar gel for all uses except infantile spasms. H.P. Acthar gel is Questcor's main product.

Investors also traded 739,600 shares of ASMl Holdings, which was up $0.17, or 0.31%. ASML finished $1.84, or 3.3%, lower yesterday to $54.56.

Investors exchanged 597,888 shares of Facebook, which was down $0.32, or 1.37%. Facebook's stock has benefited recently from its integration into the Apple's (NASDAQ:AAPL) iOS 6.